PubMed:32167166 / 852-853
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T140","span":{"begin":0,"end":1},"obj":"CD"}],"text":"1"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok159","span":{"begin":0,"end":1},"obj":"CD"}],"text":"1"}